The Gear,antibacklash,spur, cataloged under National Stock Number 3020-01-070-0345, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Designatronics Inc Perfect Gear and Instrument Div. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-070-0345 |
| Primary Part Number | 9713-193 |
| Item Name | Gear,antibacklash,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Designatronics Inc Perfect Gear and Instrument Div |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.125 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.188 INCHES FIRST END IN |
| Teeth Quantity | 60 |
| Clamping Surface Nominal Length | 0.172 INCHES FIRST END IN |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH NO. 5.4.1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.297 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.6250 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | SPLIT FIRST END |
| Nominal Outside Diameter | 0.6410 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.100 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 9713-193 PRIMARY | Designatronics Inc Perfect Gear and Instrument Div (USA) |
| 97310031-3 PRIMARY | Westfield Precision Products Inc West Coast Gear Products Div (USA) |
| AGA0730 | Southern Gear & Machine Inc (USA) |
| Reference | Meaning |
|---|---|
| 901055 | D/9 Drawing number reference only U.S. Government activity |
| 901055-3C | 5/2 Secondary reference U.S. Government activity |
NSN 3020-01-070-0345 is a Gear,antibacklash,spur, manufactured by Designatronics Inc Perfect Gear and Instrument Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-070-0345 has 3 manufacturer part numbers on file: 9713-193 (Designatronics Inc Perfect Gear and Instrument Div), 97310031-3 (Westfield Precision Products Inc West Coast Gear Products Div), AGA0730 (Southern Gear & Machine Inc).
2 possible matches (shared part number, not a government interchangeability claim): 3020-01-070-0639, 3020-01-433-8311. Verify interchangeability with system specifications before substitution.
Key specifications for 9713-193: Bore Nominal Diameter: 0.125 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.188 INCHES FIRST END IN; Teeth Quantity: 60; Clamping Surface Nominal Length: 0.172 INCHES FIRST END IN. 19 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.